Refrigerating apparatus.



E. W. NEUMAN. REFRIGERATING APPARATUS.

APPLICATION FILED NOV. 9,1912. L1J83 Patented May 18, 1915.

2 SHEET$SHEET I.

wi/wzooeo E. W.-NEUIVIAN.

REFRIGERATING APPARATUS.

APPLICATION FILED NOV. 9. 1912.

Patented May 18, 1915.

2 SHEETSSHEET 2.

. Winn-ammo M w W EDWARD W. NEUMAN, OF YORK, PENNSYLVANIA.

REFRIGERATING APPARATUS.

Specification of Letters Patent.

Patented May 18, 1915.

Application filed November 9, 1912. Serial No. 730,332.

T all whom it may concern Be it known that I, EDWARD W. NEUMAN, a citizen of the Ilnited States, residing at York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Refrigerating Apparatus, of which the following is a specification.

Hy invention relates to improvements in refrigerating apparatus, for freezing cream and the like.

An important object of this invention is to provide an apparatus of the above-mentioned character which is of simple construction, inexpensive to manufacture .and convenient in use.

A further object of the invention is to provide apparatus of the above-mentioned character which is economical and reliable in operation.

Other objects and advantages of this invontion will be apparent throughout the following description.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a vertical longitudinal sectional view through the entire apparatus, parts thereof being shown in elevation. Fig. 2 is a perspective view of one of the refrigerating pans or re ceptacles. Fig. 3 is a plan view ,of the same, a part thereof being broken away for the sake of illustration. Fig. 4: is an edge elevation of the same. Fig. 5 is an enlarged transverse sectional view through the same, taken on line 77 of Fig. 3.

The main casing or cabinet which constitutes the present invention consists of exterior boards 1 and 2 between which is located a thickness of insulating paper 3. These boards are secured together in any suitable manner and support the said paper, the boards 2 are supported upon studs or rafters 4. The members at the vertical sides of the cabinet or main casing are referred to as the studs, while the members 4 at the top of the cabinet or casing are referred to as the rafters. The space between the studs and rafters is filled with granulated cork, indicated at 5. Boards 6 are secured to the inner edges of the saidstuds and rafters and confine the cork 5 between the same. Insulating paper 7 is applied to the inner surfaces of the boards 6. cork boards 8 are applied to the inner sur- Thefaces of the insulating paper 7, and a layer of cement is applied to the inner surfaces of the said cork boards 8. Cork boards 10 are applied to the inner surfaces of the cement 9, and a cement finish 11 is applied to the inner surfaces of the cork boards 10 and constitutes the inner surface of the side and top walls of the cabinet or casing.

The floor of the cabinet or casing consists of an upper layer 12 of concrete, immediately below which is located a layer of cork boards 13, with a layer of asphalt cement 14 located between the concrete 12 and the boards 13, and securing them together. A layer of cork boards 15 is located below the layer of cork boards 13 and is secured thereto by a layer of asphalt cement 16. A layer of asphalt cement 17 secures the cork boards 15 to the floor or foundation upon which the cabinet rests. The cabinet or casing is divided transversely by a partition 21. The cabinet or casing is provided in its front wall (not shown) with normally closed doors (not shown).

Posts 22 preferably of angle iron are arranged in pairs at the ends and intermediate portions of the cabinet or casing. These posts are vertically disposed, and the members thereof are connected by horizontal parallel bars 23. Closed refrigerating pans or receptacles 2 are horizontally arranged. and rest upon these bars and the intermediate portions of said pans or receptacles eX- tend through openings in the partition 21. These pans or receptacles are of a particular construction, as will be hereinafter ex plained in detail. The pans or receptacles are spaced one from the other, and are adapted to contain the refrigerant to operate upon the material that is stored in the cabinet or casing.

The pans or receptacles 24 are preferably parallelopiped bodies preferably formed of sheet metal. These pans or receptacles fit snugly between. the adjacent edges of the horizontal bars 23. The tops, sides and ends of these pans or receptacles are preferably formed from a single sheet of metal, as 25,

and the bottoms 26 are applied to the edges of the sides and ends and are secured thereto by welds as at 27. At intervals, stay-bolts 28 are passed through the tops and bottoms of the pans or receptacles and serve to hold the said parts in parallel relation when the pans or receptacles contain the liquid and gases under pressure. These bolts are screwthreaded throughout their lengths and have screw-threaded engagement with the tops and bottoms of the pans or receptacles, the ends of the bolts being struck up and welded into close contact with said tops and bottoms. Pipe-supports 29 depend from the rear portions of the tops of the pans or re ceptacles, and pipe supports 30 depend from the front portions of the tops of said pans or receptacles. These supports are preferably welded in contact with the tops of the pans or receptacles. Pipes 31 "pass through the intermediate portion of the front of the cabinet or casing and also pass through the front sides of the pans or receptacles 24. These pipes communicate with pipes 32 which are held by'the supports 30. These supports 30 are somewhat longer than the supports 29, and therefore the pipes 32 are located near the bottoms of the pans. The pipes 32 are provided at their inner sides with openings 33. The ammonia or other suitable gas is forced through the pipes 31 and 32 and out through the openings 33 into the pans or receptacles 24. The pipes 32 are closed at their ends in any suitable manner. The pipes 34 are held in the supports 29 near the tops of the pans 24, and the said pipes are provided at their inner sides with openings 35. The ends of the pipes 34 are closed in any suitable manner. Pipes 36 pass through the front of the cabinet or casing and through the front sides of the pans 24 in the vicinity of the ends thereof, and communicate with the end portions of the pipes 34. Any suitable suction means, as for instance, a pump, is connected to the pipes 36, and inasmuch as the pipes 34 are located in the vicinity of the tops of the pans or receptacles, when suction is applied to the pipes 36, the ammonia gas is drawn from the upper portions of the pans 24, through the openings 35 in the pipes 34 and passes through the pipes 36. Thus, the ammonia is introduced into the lower portion of the pans or receptacles, in the liquid form, and after it has been converted into a gas, the same is drawn off throughthe pipes 36, as above stated. 7

By introducing the liquid ammonia into the lower portions of the pans, such lower portions or bottoms are at all times covered with said liquid ammonia, whereby refrig erating operation or effect is facilitated in the lower portions of the pans or receptacles.

Having described the invention what is 2. In a refrigerator, a pan, a pipe leading into the intermediate portion of one side thereof, a pipe connected with the first mentioned pipe and located in the vicinity of the bottom of the pan and having openings,

a pipe located in the vicinity of the top of the pan at the rear-portion thereof and having openings, and pipes connected with the end portions of the last mentioned pipe.

3. In a refrigerator, a closed refrigerating receptacle, a perforated supply pipe mounted within the receptacle adjacent the bottom thereof and extending longitudinally of the receptacle for the greater portion of the length of said receptacle, a supply pipe connected with the perforated supply pipe and extending exteriorly of the receptacle, and means to withdraw gas from the top of the receptacle.

4. In a refrigerator, a closed refrigerating receptacle adapted to be approximately horizontally arranged, a perforated supply pipe disposed within the receptacle adjacent the bottom thereof and extending longitudinally of thereceptacle for the greater portion of its length, and a perforated exhaust pipe mounted in the receptacle adjacent the plurality of points and for the greater portion of its length. I

In testimony whereof I aflix my signature in presence of two witnesses.

. EDWARD W, .NEUMAN. Witnesses v NOAH C. MAY, HARRY C. Pnnmoom). 

